Installed these tires on my 03 Raptor 660R ATV and have ridden over 200 miles on them at 10.5 PSI. Very smooth and predictable on the road even when I was getting up to as fast as 76 MPH. (verified by GPS) The speed rating allows up to 87 MPH (not brave enough...yet). I highly recommend these tires for anyone wanting to ride their ATV on the streets, provided that ATV's can be made street legal in your state that is. Fair Warning... They're a bit heavier than the standard ATV knobby tires but this was expected as they're DOT approved for street use.